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Metering and telemetry ensure accurate revenue accounting

Metering and telemetry are mandatory tools for ensuring accurate revenue accounting and ISO operational visibility.

Metering process and requirements

Metering processes and procedures are used by the ISO, metered entities and scheduling coordinators to obtain settlement quality meter data used for the settlement of the market.

Metering Procedures

These procedures complement, but do not replace, section 10 of the ISO Tariff and Business Practice Manual for Metering.

Operating Procedures

Meter installation, inspection and certification

Additional information, required forms and lists for metered entities.

Agreements and information requests sheets

Agreements to adhere to the SC requirements and standards.  Please provide required information to initiate certification, meter service and network connectivity agreements early in the process.

Application access

There are many different applications used by SCs to participate in the market. The ISO and its market participants must adhere to rigorous requirements to help ensure the integrity and confidentiality of commercially sensitive or proprietary information and data, as well as to protect the ISO grid and its assets.

Options for meter data submission

Telemetry process and requirements


Generating units and load participants must establish and maintain a data processing gateway between plant facilities and the ISO energy management system for the purpose of generation control and monitoring.

Direct telemetry standards

The ISO requires direct telemetry of participating generators and load by installing a remote intelligent gateway (RIG) for generating units providing regulation energy or a data processing gateway (DPG) or other ISO-approved technology for resources providing non-regulation ancillary services or supplemental energy.

Agreements and information request sheets

Please provide required information to initiate telemetry agreements early in the process.

  • Participating generator agreements and information request sheets
    Large Generator Interconnection Agreements are required for generators 20 megawatts or larger seeking to hook up to the grid. Small Generator Interconnection Agreements are required for projects under 20 megawatts. Please provide the required information to initiate meter service and other agreements early in the process.
  • Scheduling coordinator agreements and information request sheets
    Agreements to adhere to the SC requirements and standards. Please provide required information to initiate certification, meter service and network connectivity agreements early in the process.

Application access

There are many different applications used by SCs to participate in the market. The ISO and its market participants must adhere to rigorous requirements to help ensure the integrity and confidentiality of commercially sensitive or proprietary information and data, as well as to protect the ISO grid and its assets.